Answer in brief
CVE-2026-98604 records a Unknown severity vulnerability in ovpn: replace bind when learning local endpoint. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f0281c1d3732d1ec084fa1e06d1767d33e1a570e <21dbc9f4d0bdd3b22f91beabc7840064bf11594f || >=f0281c1d3732d1ec084fa1e06d1767d33e1a570e <e283009151d3d131447c2edda500199c5fda5f72 || >=f0281c1d3732d1ec084fa1e06d1767d33e1a570e <aea934a221ec6a867221e5b765f65f1857befd53 | 21dbc9f4d0bdd3b22f91beabc7840064bf11594f, e283009151d3d131447c2edda500199c5fda5f72, aea934a221ec6a867221e5b765f65f1857befd53 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: ovpn: replace bind when learning local endpoint struct ovpn_bind is published through peer->bind with RCU, but local endpoint learning updates bind->local in place under peer->lock. UDP TX reads the field without that lock. In particular, a concurrent IPv6 update can therefore result in a torn address read. Use ovpn_peer_reset_sockaddr to publish a replacement bind when learning a new local endpoint, just as a remote endpoint change does. Preserve the current remote address and reset the dst cache only after the new bind has been published successfully. Track remote endpoint changes separately so that float notification and transport-address rehashing remain limited to actual peer floats.
Quoted source text, attributed separately from HOL analysis.